| 摘要 |
A vehicle impact attenuator (10) includes an array (14) of resilient, self-restoring tubes (16) arranged along a longitudinal axis. This array (14) includes two or more tubes (16) per row. The tubes (16) each include a respective compression element (24) oriented at an acute angle with respect to the longitudinal axis (18) of the array (14), and an elongated structure (28) such as a set of cables or rails (30) is positioned between the tubes (16) and in alignment with the longitudinal axis (18). The tubes (16) are guided for sliding movement along the rail (30) or cables in an axial impact, and the tubes (16), compression elements (24), guides (32), and rail (30), cooperate to redirect a laterally impacting vehicle. <IMAGE> |
